Ladle car and ladle therefor



A. C. NELSON.

LADLE CAR AND LADLE THEREFOR.

APPLICATION FILED JULY,19, I920.

1 ,405,065, Patented Jan. 31, 1922.

4 SHEETS-SHEET I;

A. C. NELSON.

LADLE CAR AND LADLE THEREFOR.

APPLICATION FILED JULY [9, 1920.

1,405,0 5, Patented Jan. 31, 19 22.

4 SHEETS-SHEET 2.

Jkwezziozv ALFRED 6'. Azsa/v V. 5 army,

A. C. NELSON LADLE CAR AND LADLE THEREFOR.

APPLICATION FILED JULY 19,1920.

1,405,065, Patented Jan. 31, 1922.

4 SHEETS-SHEET 3.

I JZiiazne,

A. C. NELSON. LADLE CAR AND LA'DLE THEREFOR.

APPLIQATION'FILED JULY 19,1920. v

Patented Jan. 31, 1922.

. 4 SHEETS-SHEET 4.

I Lakewood, in the county of 'side frames instead of ALFRED CLNELSON, or LAirEwoon, 01110,

AreNr OFFICE;

ASSIGNOR COMB-ANY, OF YOUNGSTOWN, OHIO, A CORPORATION OF OHIO.

I LiaipLE can AND LADLE THEREFOR.

' v Application filed July 19,

To all whom it may conbern:

Be it known that I, ALFRED C. NELsoN, a citizen of the United States; residing at Cuyahoga and State of Ohio, have invented certain new and useful Improvements in L'adl'e Cars and Ladles Therefor, oiwhich the following is a specification.

Among the objects of my invention are the provlsion of a ladle-car having straight the customary depressed or drop side frames; the provision of a ladle-car having straight side frames without reducing the capacity of the ladle for a given height and width as compared to ladle-carsvof previous constructions having drop side frames; the provision of-a' ladlecar that may be built almost entirely of structural steel without the employment of castings; the provision of a suitable ladle for use w th a;car having'straight frames; the

provision of a ladle having its upper portion a solid of revolution about a vertical axis and its bottom a solid of revolution about a horizontal axis; the provision of a maximum capacity ladle which maybe carried in a ladle-car having straight side frames and which may be readily tilted therein for pouring.

Heretofore ladle-cars with which I am fa: miliar have been constructed with drop or depressed side frames in order that ladles of large capacity which may be carried by the car may be tilted for pouring without interfering with the side frames. This type of. depressed frame car is difficult and expensive to manufacture and the frames are devised a ladle which, while weakened, in the direction of the severe and thrusts to which such cars are subjected in service, to suchan extent that various expensive expedients have to be employed in the construction of the cars in order to give them the necessary strength for supporting and transporting their extremely heavy loads.

In order to provide a ladle-car of simple construction and maximum strength yethaving substantially the same capacity for its cars previously constructed with depressed having its upper portion of full normal width or diameter, too great at its lower end to permit of tilting between the frames of the car for pouring, has its sides cut away at the lower Specification of Letters Patent. Patented an, 31 1922,

form body sill.

.frames which may consequently frames 1 have 1920. Serial no. 857,285.

end of its upper portion so as to permit the ladle tobe tilted for pouring.

TO THE WILLIAM roLLocx While my invention may be embodied in various forms, I prefer to use a ladle having its bottom the form of a solid of revolution about a horizontal axis tion a solid of revolution about a vertical axis. The upper portion is customarily and preferably frustoconical, with its larger diameter at the top. Ordinarily flat or dished circular bottoms have been used on these ladles. When such a ladle is tilted upon itsand its upper por supporting trunnions in the ladle-car,- the wide bottom swings out over the side of the car so that the edge of the bottom would interfere with a straight side frame or plat- This has made it necessary, 'previous to my invention, to construct ladlecars with depressed, or andhas resulted in the as above described.

By providing a ladle having its sides cut away at the lower end adjacent the car drop side frames weakening of the cars frames the ladle may be tilted upon its trun- I a nions without interfering with straight mad very much stronger for the same weight,]or of the same strength fora much smaller weight of material in the frames as (;om

pared to the depressed or drop side frame car.

In the preferredform of my invention the only where they would, if not cut away, in; terfere with theframe of the car when the ladle is being tiltedfor pouring. In other la dle has the lower end of itssides cut away I ,to- I words the lower end of the ladle is cut away.

or rounded in the tilts. By making the upper port on of -=the ladle a solid of revolution'about a verticalplane in which the ladle ea i axis, such as a frusto-cone inverted, and-the bottom of the ladle a portion'of a solid of revolution about a horizontal axis, such as a cylindrical shell, the ladle can be-readily constructed of plate metal and the advantages of my inventioh secured.

The aforesaid objects and advantages 'to-' gether with others which will be apparent to those skilled in the use of my invention fications and shown drawings in which described in these speci- Fig. 1 is a side view partly in section of a ladle-car built in accordance with my invention in the accompanying" art are attained by the I Fig. 2 is an end view partly in section of the car shown in Fig. 1;

Fig. 3 is a side view of the car shown in Figs. 1 and 2 with the ladle being tilted for a short pour;

Fig. 4 is a vertical transverse section of the ladle shown in Figs. 1, 2 and 3; and

Fig. 5 is a vertical longitudinal section of the ladle shown in Figs. 1, 2, 3 and 4.

Referring to the drawings, 1 and 2 represent the car trucks upon which is supported in any customary or suitable way the body or main platform-frame, 3, of the car. The side members, 4 and 5, of the main frame, 3, are preferably made straight thus providing a structure capable of withstanding maximum ,end-thrusts and transverse bending moments. The side frame members, 4 and 5, are preferably made of rolled structural shapes such as the I beams shown in the drawings. Immediately over the .trucks the platform body, 3, of the car may be constructed in any suitable manner, preferably of rolled'structural steel shapes. such as the channels, 6, running longitudinally of the 'car and I beams, 7 and channels 8, running transversely of the car and which are shown riveted and reinforced at "the joints in a well understood manner to form a strong platform body for the severe duty which it has to perform. Running transversely of the car, supported upon the side frames, 4, 5. and longitudinal frame members, 6, are the beams, 9 and 10, which are preferably made of rolled structural steel such as the I beams shown in .the drawings and which form the main supports for the ladle, 11. Upon the cross members, 9 and 10, are supported the ladle trunnion chairs or bearings, 12, 12, 13, '13. It will be seenv that at the middle of thecar there is an open well or ladle receiving opening formed between the side frame beams, 4, 5, and the cross frame beams, 9, 10.

The ladle, 11', which I prefef to use, has its upper portion of customary frnsto-conical or tapered shape, circular in horizontal cross section with the largest diameter at the top. The bottom of the ladle however differs inan important particular from ladles heretofore used. in that the bottom, 14, is formed of a portion of a solid of revolution about a horizontal axis and is preferably of cylindrical shape. The ladle, 11,

is preferably madeof plate metal, the sides being joined to the bottom member, along the lines of intersection of the conical with the cylindrical portions, in any suitable way such as by riveting the overlapped edges or by welding or in any other suitable manner. 15, 16 and 17 are metal bands which encircle and reinforce the sides of the ladle.

Secured upon opposite sides of the ladle are the supporting and lifting trunnion brackets, 18, 19, provided with the sup,-

porting trunnions, 20, 20, 21, 21, and the lifting trunnions, 22, 22. To the bottom. of the ladle are secured the pouring hooks 23, 24, to which may be secured a steel rope or cable, 25, for connecting to the crane hook when the ladle is to be tilted. To carry the rope, 25, in a convenient place, ready to use when needed. cable carrying" hooks or brackets, 25*, may be secured to the ladle and the rope may be hung loosely over one of them and one of the pouring hooks, as shown in Fig. 1, when the rope is not in use.

ln'Figs. 2 and 3 of the drawings there is shown a steel rope or cable loop, 25, engaged with one of the pouring hooks and with the crane hook, 26, in the act of tilting the ladle for pouring.

in Fig. 2 the ladle is shown being poured by pivoting upon its trunnions, 21, in supports, 13, of the car, while in Fig. 3 the ladle is shown while being poured pivoted upon its short pour brackets, 27 upon the short pour stands, 29. It will be seen that in either operation, that of pouring about its trunnion supports or that of making a short pour, the bottom, 14, has ample clearance from the straight side frames, 4, 5. This results from the shape of the bottom which is preferably made as shown in the drawings of a rolled cylindrical flanged plate, 14, which can very. readily be produced and which can be joined to the main body of the ladle in a simple but strong and substantial union by inexpensive means.

In the handling of molten metal the ladle is preferably lined with-refractory material such as is shown at 30 to which the shape of the ladle lends itself readily. When the body of the ladle is made in the form of a solid of revolution about a vertical axis, the

pressure of the liquid, molten metal in the;

have given to the bottomof the ladle does not appreciably change the capacity of the ladle and that it is substantially of the the same capacity as those ladles heretofore made with flat or dished bottoms but which require depressed or drop frame cars in order that the ladle may be tilted for pouring, moreover, the overall height and width of a ladle car constructed in accordance with my invention are no greater than those of ladle cars of drop frame construction. Further, the center of gravity of my car is no higher and the total weight is Very much less on account of the fact that my invention permits the car body and ladle supports to be constructed entirely out'of rolled steel instead of steel castings as has been necessary in ladle cars heretofore made;

The platform body of the car may be trussed and reinforced in any suitable manner preferably by the use of rolled structfiral' materials such as the angles and plates shown at 31, 32 etc.

Upon the platform body of the car there may be supported the customary brake opcrating apparatus such as is shown at 33.

-The operation of my ladle car is in every way similar to that of other ladle cars heretofore in use. In Fig. 2 of the drawings the ladle, 11, is shown in upright position in full lines and in tilted position in dotted lines. When it is desired to tilt the ladle for pouring, a loop, preferably a steel rope, 25, is placed on one ofithe hooks, 23, 2d, and engaged by the crane-hook, 26. The raising of the crane hook, 26, causes the ladle to tilt about'its supporting trunnions such as 21, and the entire contents from the ladle may be poured in this manner. The car and ladle.

shown in the drawings are designed for pouring .on either side of the car and the ladle is provided with short pour brackets, 27 28 which are used when it is desired to pour molten metal into mixers, pig casting machines etc., provided with short pour stands, 29, coming close to the car as shown in Fig. 3. ln'this short pour operation the same flexible loop, 25, may be used for connecting one of the pouring hooks, 23, or 2%, with the crane book, 26.

The advantages of'my invention will be apparent to those skilled in the art and it will be evident that modifications of my invention may be made without departing from its scope.

Having thus described my invention, ll claim: v

1. ln a ladle car, the combination with a car body and means for supporting a ladle thereon, of a tiltable ladle having its upper portion in the form of a solid of revolution 'about a vertical axis and its bottom portion horizontally cylindrical, said ladle having trunnions upon its upper portion resting upon said supporting means, said ladle being tiltable about said trunnions.

said ladle being in the form of a solid of revolution about a vertical axis extending downwards between said side frames below the tops thereof, the bottom of said ladle being horizontally cylindrical. I

t. A ladle car having a body'composed of side and cross frames, le supports on said body, a ladle on said suppoits, said ladle having a shell the upper portion of which.

is frusto-conical with its axis vertical and .its larger diameter at the top, the bottom of said ladle being a horizontal cylindrical shell intersecting said frusto-conical section and secured thereto at the intersection of said conical and cylindrical portions, said ladle extending downward between said side frames.

5. In a ladle-car having abody composed of side and cross frame members, ladle-trunnion supports on said body, a ladle having trunnions resting on said supports'the axes of said trunnions being parallel with said side frames, the upper portion of said ladle being. in the form of a solid of revolution.

about a vertical axis extending downwardly between said side frames, the diameter of said solid of revolution being too great at its lower end to clear said side'frames when the ladle is tilted for pouring, the lower end of said upper portion of said ladle being cut away at the sides adjacent said side'frames to clear said side frames when said ladle is tilted for pouring and the bottom of said ladle being formed to close said cut away sides of said ladle;

6. In a ladle-car having a body composed of side and cross frame members, ladle trunnion supports on said body, aladle having trunnions resting on said supports, the axes of said trunnions being parallel with said side frame -members,said ladle extending downwards between said frame members and having a substantially vertical upper Mill portion and a bottom secured thereto, said upper portion bein' normally too wide at its lower end to perm t of tilting between said frames for pouring but being cut away at the sides adjacent said frame members to permit the ladle to be tilted between said-- frame members, said bottom being formed to close said cut away sides of said ladle.

7. A ladle car having a body compo of side and cross frame members, ladle trunnion supports on said body, a ladle having trunnions resting on said supports, the axes of said trunnions being parallel with, said side frame members, said ladle extending downwards between said frame members, the body of said ladle being of such shaph that if it were continued to the bottom of the ladle it would be too wide to permit of tilting for pouring, the bottom of said ladle being a portion of a solid of revolution about ice are

llb,

a horizontal axis intersecting and joined to said ladle body at the line of intersection of said solid of revolution with said ladle body, said bottom being formed so as to clear said frame members when said ladle is being tilted for pouring. Y

8. In a ladle car, the combination with the car body and means for supporting a ladle L thereon, of a ladle having a bottom in the form of a portion of a solid of revolution about a horizontal axis and a pouring hook v secured to said bottom.

9. In a ladle car, the combination with the car body and means for supporting aladle thereon, of a ladle having a bottom in the form of a portion of a solid of revolution about a horizontal axis, a pouring hook secured to said bottom and a cable carrying hook secured to said ladle. 10. In a ladle car, the combination with the car body and means for supporting a ladle thereon, of a ladle ha'ving a pouring hook secured to the bottom thereof and a cable carrying hook secured to said ladle. 11. In a ladle car, the combination with the car body having side sills and means for supporting a ladle upon said car body, of a ladle the upper portion of which has the form of a solid of revolution about a vertical axis and the bottom portion of which has the form of a ortion of a solid of revolution about a horizontal axis the generating line of said upper portion being tangent to the central transverse vertical cross section of said bottom ortion, the bottom of said ladle extending ownward between said side sills.

12. In combination with a car having straight side-beams, a ladle mounted thereon to tilt toward either side of said car, said ladle havin its bottom ortion depending between sai side-beams of the car, the opposite sides of said bottom portion of the ladle being sha ed so as to avoid striking against saidsi e-beams when the ladle is tilted to pouring position.

13. In comblnation with a car having straight side-beams, a ladle mounted thereon to tilt on an axis extending longitudinally of the car, the lower end of the ladle depending between the side-beams to a point below the same, said lower end of the ladle being semi-cylindrical in shape on an axis parallel with the tilting axis of the ladle so as to avoid striking against the sidebeams when the ladle is tilted toward either side of the car.

14. In combination with a car embodying a main frame having straight side-beams mounted upon a pair of trucks, a ladle tiltably mounted on said main frame and depending between said side-beams to a point .beloW the frames of the trucks, said depending portion of the ladle being rounded off at opposite sides so as to avoid striking a ainst the side-beams when the ladle is ti ted toward either side.

. ing its bottom rounded in the 15. In combination with a ladle car embodying a air of straight side-beams, intermediate ongitudinal beams terminating short of a point midway the length of the car to form a ladle-space or well midway the length of the car, and a series of transverse beams connecting said longitudinal beams, one pair of these transverse beams being mounted on to of the longitudinal beams at the inner en s of said intermediate longitudinal beams, and a tiltable ladle mounted on this latter pair of transverse beams and depending to a point below said longitudinal beams.

16. The combination of a ladle car having a body composed of side and cross frame members said side frame members being straight, ladle supports on said body, a ladle on said supports, the body of said ladle having the form'of a solid of revolution about a vertical axis, extending downward between said side frame members and being of such diameter that if it were continued to the bottom of the ladle it would strike the side frame member when being tilted for pouring, the sides of said body being cut away to clear said side frame members when the ladle is being tilted for pouring,

said ladle having a bottom closing said cut away portions of said body.

17. In a ladle car, a body having straight, longitudinal side beams and transverse beams supported thereon, said transverse beams being spaced apart to form with said side beams a ladle receiving opening, ladle supports on said transverse beams and a tilt-- able ladle carried on said supports, said ladle extending downward in said opening between and below said side beams and havlane in which the ladle tilts to clear said si e beams when the ladle is tilted for pouring.

18. In a ladle car a body composed of a pair of straight, longitudinal, side beams one on either side of the car extending from truck to truck thereof and disposed outside of the car wheels, cross beams connecting said side beams, and longitudinal beams intermediate said side beams terminating short of a point midway of the length of the car, ladle supports on said cross beams and a tiltable ladle upon said supports extending downward between said side beams and having its bottom contracted at its edges to clear said side beams when said ladle is tilted.

In testimony whereof I afiix m signature.

' ALFRED C. ELSON. 

